NWLSC surveyed on cruise SS07-2008 NoLauVE cruise, cruise report (http://www.cmar.csiro.au/datacentre/process/data_files/cruise_docs/SS200807sum.pdf): "The Northwest Lau Spreading Centre (NWLSC) forms an asymmetric, inflated ridge terminated by right-lateral transcurrent faulting at both northern and southern terminations, with two large calderas... astride the Ridge."; Lupton et al. (2012): "Hydrothermal activity in the Southern Caldera was revealed by a sharp decrease in light transmission, TMn, and 3He at depths below 2000 m in cast NLH-30, which was positioned near the western caldera wall", "consistent with the presence of low temperature diffuse venting"

Notes Relevant to Biology:

Year and How Discovered (if active, visual confirmation is listed first):